I figured out how to get rid of it. It is completely unscientific, but it has worked for me, so here it goes:
You will need three things:
- the cruelest, hardest bristle brush you can find.
- a bottle of dandruff shampoo
- a bathtub.
Find the hardest bristle brush you can stand, then find one with even stiffer bristles. Take a nice relaxing bath. Put the dandruff shampoo in the water. Make bubbles. Soak.
When your skin is nice and loosened up, scrub every inch as hard as you can stand. Get every bit of dead skin off. Rub your arms, your neck, your ribs, your back and anywhere else (not your private parts, that's crazy). Rub the bubbles from the dandruff shampoo in really hard. Then scrub some more. Make sure it hurts.
Do this once a week for two or three weeks.
This isn't a permanent cure, but it has worked for me. My skin, for the first time in forever, is clear. It's the only thing that has worked. Can't guarantee it will work for you, but what the heck: spots.